OK, on the config page the printer printed out it should hopefully say what the printer host name is?
If it does then click on the add port button, select Standard TCP/IP printer port and then click the new port button and the port wizard will start, click next on the first page and then on the second page type in the host name of the printer exactly as it is shown on the printout you have. click next and then finish I think.
Then make sure the new port you have just created is the one selected under the ports tab, click OK to close the driver properties and give it another go.